The Amsterdam Treaty has established the Area of Freedom, Security and Justice (AFSJ). Since then, it is an example of a policy-making area creating its way quickly and comprehensively. However, in this paper the main dilemma is to what extent the Schengen development has modified the framework of AFSJ and how it adapts in this policy while being an example of enhanced cooperation and differentiated integration model. Developments in this area are part of a realisation that European states need to act together to better face new challenges to peace and internal security, while ensuring respect for democracy and human rights. It is important to add, that cooperation in the Area of Freedom Security and Justice has been driven by forces different from that seen in other policy areas.